The Tuned Dipole Antenna model AD-100 is a standard antenna set which operates in the frequency range of 30 MHz to 1000 MHz. This set consists of four baluns and was designed according to American National Standard C63.4. This is a reference antenna set that can be used for EMC test site calibration and for calibrating other antennas in same frequency range.

pdf datasheet

• Frequency Range:	Balun 1 (dB1): 30 MHz - 65 MHz Balun 2 (dB2): 65 MHz - 175 MHz Balun 3 (dB3): 175 MHz - 400 MHz Balun 4 (dB4): 400 MHz - 1000 MHz
  Impedance:	50 Ohm
  Connector Type:	BNC(F)
  Element length assembled:	min: 6 inches, 15 cm
  Max:	212 inches, 538 cm
  Weight:	8 lbs, 36 kg